Can I read Beneficial Insects Caught By Yellow Traps Used In Mass‐trapping Of The Olive Fly, Dacus Oleae on EtoBox?

Beneficial Insects Caught By Yellow Traps Used In Mass‐trapping Of The Olive Fly, Dacus Oleae by PETER NEUENSCHWANDER is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Beneficial Insects Caught By Yellow Traps Used In Mass‐trapping Of The Olive Fly, Dacus Oleae about?

Under the conditions of a mass‐trapping experiment with 2 yellow sticky traps (YT)/small tree, 16 times as many parasitoids and predators as __Dacus oleae__ (Gmel.) were caught. If only known parasitoids and predators of the main olive pest insects __D. oleae, Saissetia oleae__ (Oliv.), __Prays oleae__ Bern., and __Aspidiotus nerii__ Bouché were considered, this ratio was reduced to 4 times. Olive flies (especially the males) were more abundant on the inner side of the YT, parasitoids and predators on the outer side and on traps in the eastern part of the canopy. This is interpreted as a higher flight activity of the beneficial insects as compared to __D. oleae__, particularly in the morning. Catches by traps on which half of each surface was painted either white, grey, or black, the other half being yellow, showed that — except for the night active chrysopids and coniopterygids — all parasitoids and predators were equally or better attracted to yellow than __D. oleae__. Other yellow or orange colours did not confer a higher specificity of the traps for the fruit fly. From absolute population estimates it is concluded that 3–5 YT/tree can virtually eliminate the beneficial fauna. #

Who reads Beneficial Insects Caught By Yellow Traps Used In Mass‐trapping Of The Olive Fly, Dacus Oleae?

Author

PETER NEUENSCHWANDER

Publisher

Wiley

Published

1982

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)